/*
 * Copyright © 2017 camunda services GmbH (info@camunda.com)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.camunda.zeebe.model.bpmn.impl.instance;

import static io.camunda.zeebe.model.bpmn.impl.BpmnModelConstants.BPMN20_NS;
import static io.camunda.zeebe.model.bpmn.impl.BpmnModelConstants.BPMN_ELEMENT_INPUT_SET;

import io.camunda.zeebe.model.bpmn.instance.BaseElement;
import io.camunda.zeebe.model.bpmn.instance.DataInput;
import io.camunda.zeebe.model.bpmn.instance.InputSet;
import io.camunda.zeebe.model.bpmn.instance.OutputSet;
import java.util.Collection;
import org.camunda.bpm.model.xml.ModelBuilder;
import org.camunda.bpm.model.xml.impl.instance.ModelTypeInstanceContext;
import org.camunda.bpm.model.xml.type.ModelElementTypeBuilder;
import org.camunda.bpm.model.xml.type.ModelElementTypeBuilder.ModelTypeInstanceProvider;
import org.camunda.bpm.model.xml.type.attribute.Attribute;
import org.camunda.bpm.model.xml.type.child.SequenceBuilder;
import org.camunda.bpm.model.xml.type.reference.ElementReferenceCollection;

/**
 * The BPMN inputSet element
 *
 * @author Sebastian Menski
 */
public class InputSetImpl extends BaseElementImpl implements InputSet {

  protected static Attribute<String> nameAttribute;
  protected static ElementReferenceCollection<DataInput, DataInputRefs>
      dataInputDataInputRefsCollection;
  protected static ElementReferenceCollection<DataInput, OptionalInputRefs>
      optionalInputRefsCollection;
  protected static ElementReferenceCollection<DataInput, WhileExecutingInputRefs>
      whileExecutingInputRefsCollection;
  protected static ElementReferenceCollection<OutputSet, OutputSetRefs>
      outputSetOutputSetRefsCollection;

  public InputSetImpl(final ModelTypeInstanceContext instanceContext) {
    super(instanceContext);
  }

  public static void registerType(final ModelBuilder modelBuilder) {
    final ModelElementTypeBuilder typeBuilder =
        modelBuilder
            .defineType(InputSet.class, BPMN_ELEMENT_INPUT_SET)
            .namespaceUri(BPMN20_NS)
            .extendsType(BaseElement.class)
            .instanceProvider(
                new ModelTypeInstanceProvider<InputSet>() {
                  @Override
                  public InputSet newInstance(final ModelTypeInstanceContext instanceContext) {
                    return new InputSetImpl(instanceContext);
                  }
                });

    nameAttribute = typeBuilder.stringAttribute("name").build();

    final SequenceBuilder sequenceBuilder = typeBuilder.sequence();

    dataInputDataInputRefsCollection =
        sequenceBuilder
            .elementCollection(DataInputRefs.class)
            .idElementReferenceCollection(DataInput.class)
            .build();

    optionalInputRefsCollection =
        sequenceBuilder
            .elementCollection(OptionalInputRefs.class)
            .idElementReferenceCollection(DataInput.class)
            .build();

    whileExecutingInputRefsCollection =
        sequenceBuilder
            .elementCollection(WhileExecutingInputRefs.class)
            .idElementReferenceCollection(DataInput.class)
            .build();

    outputSetOutputSetRefsCollection =
        sequenceBuilder
            .elementCollection(OutputSetRefs.class)
            .idElementReferenceCollection(OutputSet.class)
            .build();

    typeBuilder.build();
  }

  @Override
  public String getName() {
    return nameAttribute.getValue(this);
  }

  @Override
  public void setName(final String name) {
    nameAttribute.setValue(this, name);
  }

  @Override
  public Collection<DataInput> getDataInputs() {
    return dataInputDataInputRefsCollection.getReferenceTargetElements(this);
  }

  @Override
  public Collection<DataInput> getOptionalInputs() {
    return optionalInputRefsCollection.getReferenceTargetElements(this);
  }

  @Override
  public Collection<DataInput> getWhileExecutingInput() {
    return whileExecutingInputRefsCollection.getReferenceTargetElements(this);
  }

  @Override
  public Collection<OutputSet> getOutputSets() {
    return outputSetOutputSetRefsCollection.getReferenceTargetElements(this);
  }
}
